Timeline: Johan van Heurn: Our Family History

> 1740 - Died: Yes, date unknown

> 1630 - Born: 11 Jun 1630

> 1736 - Born: 27 Dec 1736

> 1794 - Died: 23 Aug 1794

> 1724 - Born: Between 1724 and 1726

> 1753 - Child Anna Francisca de Laet b. 21 Nov 1753

> 1755 - Child Joannes de Laet b. 18 Feb 1755

> 1757 - Child Joanna Maria de Laet b. 23 Nov 1757

> 1761 - Child Carolina de Laet b. 17 Jun 1761

> 1767 - Child Gerardus de Laet b. 12 Jun 1767

> 1771 - Child Petrus de Laet b. 21 Apr 1771

> 1780 - Died: 23 Mar 1780